The VMC200L from Vixen is well suited to deep sky observing and imaging. This 8.0"/200mm f/9.75 catadioptric telescope features a sophisticated configuration that employs incorporates a primary mirror and a meniscus corrector just before the secondary mirror. The resulting optical path is corrected twice - this eliminates spherical aberration and field curvature while delivering sharper images without false-color. Because the optical correction is placed before the second mirror, there's no need for a corrector plate and the dewing problems associated with it. Another benefit is the elimination of spherical aberrations,
Focusing the VMC200L yields a stable and easy to adjust image. The rack-and-pinion focusing system is placed behind the primary mirror to eliminate image-shift. The focuser accepts 2.0" eyepieces and accessories.
This package includes the VMC200L telescope, Vixen's NLV 25mm eyepiece, a 7x50 finderscope with a flip mirror diagonal that accepts 1.25" eyepieces, and the GP-HAL130 aluminum tripod with a GPD2 mount.
Primary mirror: f=500 mm, f/2.5
Secondary mirror: d=72 mm, magnification 3.9x
Distance primary secondary:: ≈330 mm
Central obstruction 80mm diameter, 40% of d
8.0"/200 mm, f=1950 mm, f/9.75 catadioptric system
Open tube design eliminates dewing, speeds up cool-down
Optical path is corrected twice to eliminate spherical aberration and curvature of field
Rack-and-pinion focusing system is placed behind the primary mirror to eliminate image-shift